As of 2021, the most used SEO techniques include:
- Content Quality (keyword, full-fledged content)
- Search Intent
- Voice Search
- Device-friendly website (one that works on desktops and mobiles equally well)
- Improved title/description
- Internal links
- Backlinks
- Plug content gaps
- Voice search
All these SEO techniques contribute to increasing visibility, optimization, and revenue in an online business.